Hey I practice the same way to drill in my yardage estimation. I rarely ever shoot the same distance twice. I'll do something like this: 35, 5, 20, 40, 15, 25, 10 etc. And every distance in between. I try to mix it up as much as possible. Awesome practice. You know you're doing it right when all arrows fall in a killing group.
I do the walk downs and walk ups like in your video too. It really helps me learn my bow/arrow trajectory in a hurry. The rest of my practice is woods walks and stump shooting (usually when coming out of the field in the morning, or when scouting in spring and summer). I like this because I can shoot uphill/downhill, and practice around obstacles and work on threading arrows between branches midrange.